Hercules XPS 2.0 60 Multimedia Speakers Total power output: 30 W RMS (2 x 15 W) Peak power: 60 W Compact wooden satellites 21 cm (H) x 10.5 cm (W) x 13 cm (D) All switches and knobs located on the front of the speaker - general volume control knob with Standby position, bass and treble volume control knobs High-quality sound restitution based on an elaborate acoustic design comprising a tweeter system with a silk dome and broadband speakers Bass Reflex Technology: a curved tube manages bass sounds perfectly by ensuring optimum air flow guidance